How to add object S_ARCD_RES to user id?

I americium caller to SAP. I americium trying to archive the PO papers and load utilizing SARI. The PO papers has been archived and stored connected the contented server successfully, but erstwhile I americium trying to load the PO papers utilizing SARI, it is complaining:  "Handle 0 is not known." Message no. BA021.I tried to cheque successful the SAP notes and recovered the origin and solution for the issue: 

Cause
The idiosyncratic is missing the required authorization.

Resolution
Ensure that the idiosyncratic has the authorization for entity S_ARCD_RES (with enactment 02).

I request assistance to cognize however to add the entity S_ARCD_RES to the idiosyncratic ID. 

Thanks